/*
 * This file is part of the OregonCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef OREGON_BYTECONVERTER_H
#define OREGON_BYTECONVERTER_H

/*
  ByteConverter reverse your byte order.  This is used
  for cross platform where they have different endians.
 */

#include<Platform/Define.h>
#include<algorithm>

namespace ByteConverter
{
template<size_t T>
inline void convert(char* val)
{
    std::swap(*val, *(val + T - 1));
    convert < T - 2 > (val + 1);
}

template<> inline void convert<0>(char*) {}
template<> inline void convert<1>(char*) {}             // ignore central byte

template<typename T> inline void apply(T* val)
{
    convert<sizeof(T)>((char*)(val));
}
}

#if OREGON_ENDIAN == OREGON_BIGENDIAN
template<typename T> inline void EndianConvert(T& val)
{
    ByteConverter::apply<T>(&val);
}
template<typename T> inline void EndianConvertReverse(T&) { }
#else
template<typename T> inline void EndianConvert(T&) { }
template<typename T> inline void EndianConvertReverse(T& val)
{
    ByteConverter::apply<T>(&val);
}
#endif

template<typename T> void EndianConvert(T*);         // will generate link error
template<typename T> void EndianConvertReverse(T*);  // will generate link error

inline void EndianConvert(uint8&) { }
inline void EndianConvert( int8&) { }
inline void EndianConvertReverse(uint8&) { }
inline void EndianConvertReverse( int8&) { }

#endif

